npm install is-npmimport {isNpmOrYarn, isNpm, isYarn} from 'is-npm';
console.table({isNpmOrYarn, isNpm, isYarn});$ node foo.js
# ┌─────────────┬────────┐
# │ (index) │ Values │
# ├─────────────┼────────┤
# │ isNpmOrYarn │ false │
# │ isNpm │ false │
# │ isYarn │ false │
# └─────────────┴────────┘
$ npm run foo
# ┌─────────────┬────────┐
# │ (index) │ Values │
# ├─────────────┼────────┤
# │ isNpmOrYarn │ true │
# │ isNpm │ true │
# │ isYarn │ false │
# └─────────────┴────────┘
$ yarn run foo
# ┌─────────────┬────────┐
# │ (index) │ Values │
# ├─────────────┼────────┤
# │ isNpmOrYarn │ true │
# │ isNpm │ false │
# │ isYarn │ true │
# └─────────────┴────────┘- is-npm-cli - CLI for this module
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